hooah
Phonetic spelling of the military acronym HUA, which stands for "Heard Understood Acknowledged." Originally used by the British in the late 1800's in Afghanistan. More reciently adopted by the United States Army to indicate an affirmative or a pleased response.
Example:
1: Sgt: "Y'all got the game plan?"
PFC(s): "Hooah sargeant!"
2: Sgt: "Y'all ready for chow?"
PFC(s): "Hooah sergeant!"
1: Sgt: "Y'all got the game plan?"
PFC(s): "Hooah sargeant!"
2: Sgt: "Y'all ready for chow?"
PFC(s): "Hooah sergeant!"